Adarnase I (Georgian: ადარნასე I) or Adrnerse (ადრნერსე, also transliterated as Atrnerseh), of the Chosroid dynasty, was a presiding prince of Iberia (Kartli, eastern Georgia) from 627 to 637/642.

In 627, he assisted the Byzantine-Khazar army with the siege of Tbilisi and was made ruler of Iberia by the Byzantine emperor Heraclius who had the pro-Sasanid prince Stephanus I executed.

Somewhere between 637 and 642 (i.e., after the battle of al-Qādisiyyah and before that of Nihawānd), he joined his forces with the Albanian prince Javanshir in an attack on Iranian garrisons in Albania.

He is identified by the art historian Wachtang Djobadze with the honorary consul Adarnase (Adrnerse hypatos) recorded on an inscription from the Jvari Monastery at Mtskheta, Georgia.

Cyril Toumanoff argues, however, that this Adrnerse is actually Adarnase II active in the late seventh century.